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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#ifndef QQTAUDIOMANAGER_H</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="preprocessor">#define QQTAUDIOMANAGER_H</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;</div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="preprocessor">#include &lt;QObject&gt;</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;</div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="preprocessor">#include &lt;QAudioInput&gt;</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#include &lt;QAudioOutput&gt;</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &lt;QAudioDeviceInfo&gt;</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor">#include &lt;QAudioFormat&gt;</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;</div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#if QT_VERSION &gt; QT_VERSION_CHECK(5,0,0)</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &lt;QAudioInputSelectorControl&gt;</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &lt;QAudioOutputSelectorControl&gt;</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &lt;qqtcore.h&gt;</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &lt;qqt-local.h&gt;</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">//设计思路：QQtAudioManager两端是内存和声卡（输入输出差分可选的）设备，为内存服务。</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;</div><div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="class_q_qt_audio_manager.html">   58</a></span>&#160;<span class="keyword">class </span>QQTSHARED_EXPORT <a class="code" href="class_q_qt_audio_manager.html">QQtAudioManager</a> : <span class="keyword">public</span> QObject</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;{</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;    Q_OBJECT</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="class_q_qt_audio_manager.html">QQtAudioManager</a> ( QObject* parent = <span class="keyword">nullptr</span> );</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;    ~<a class="code" href="class_q_qt_audio_manager.html">QQtAudioManager</a>();</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;    <span class="comment">/*输入、输出音频设备列表，用于显示*/</span></div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;    <span class="keyword">static</span> QList&lt;QAudioDeviceInfo&gt; availableInputDevices();</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    <span class="keyword">static</span> QList&lt;QAudioDeviceInfo&gt; availableOutputDevices();</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="comment">/*当前正在使用的默认输入、输出设备的信息*/</span></div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="keyword">static</span> QAudioDeviceInfo defaultInputDevice();</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;    <span class="keyword">static</span> QAudioDeviceInfo defaultOutputDevice();</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;    <span class="comment">/*Manager的输入、输出设备的信息，用于切换Manager使用的输入、输出设备*/</span></div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;    <span class="comment">/*读取和修改输入、输出设备。default为默认输入、输出设备*/</span></div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;    QAudioDeviceInfo&amp; inputDeviceInfo();</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    QAudioDeviceInfo&amp; outputDeviceInfo();</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;    <span class="comment">/*一般建议设置一个AudioFormat，然后这个format和设置的相等。default为preffered格式*/</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;    <span class="comment">//这里保证输入、输出使用格式相等 或者 不同</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;    <span class="comment">//如果格式不同，在mac电脑上本地输入输出设备是可以使用的，但是对于连接的语音蓝牙话筒，却是不可以使用的，原因未知。</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    <span class="comment">//格式相同的时候，实在是太好用啦。</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;    <span class="comment">//这个建议默认就相同，但是，在QQtAudioManager当中，并没有直接将其相等处理，如果用户在readyRead槽函数里，可以更改采样率进行某些特殊处理。一般不需要差异处理的，相等就行了。</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    QAudioFormat&amp; inputAudioFormat ( <span class="keywordtype">void</span> );</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;    QAudioFormat&amp; outputAudioFormat ( <span class="keywordtype">void</span> );</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;    <span class="comment">/*对输入设备进行操作*/</span></div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;    <span class="comment">/*带输入形参的接口，和这个接口功能相同，忽略那个。*/</span></div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <span class="keywordtype">void</span> startInput();</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keywordtype">void</span> stopInput();</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    QByteArray readAll();</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    QByteArray read ( qint64 maxlen );</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;    QAudioInput* inputManager();</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;    <span class="comment">//输入设备流句柄，用于对其读取数据。和上边的read函数一样的效果。</span></div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    QIODevice* inputDevice();</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <span class="comment">/*对输出设备进行操作*/</span></div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;    <span class="keywordtype">void</span> startOutput();</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;    <span class="keywordtype">void</span> stopOutput();</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;    <span class="keywordtype">void</span> write ( <span class="keyword">const</span> QByteArray&amp; bytes );</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;    QAudioOutput* outputManager();</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;    <span class="comment">//输出设备流句柄，用于对其写入数据。和上边的write函数一样的效果。</span></div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    QIODevice* outputDevice();</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    <span class="comment">//这是个方便，操作默认输入、输出设备的开关</span></div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;    <span class="comment">//用上边的stop等函数关闭。</span></div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    <span class="comment">//如果使用这个函数，建议：设置公共的AudioFormat，比如输出的format，或者输入、输出都支持的Format。</span></div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="comment">//这个Format不会跟随默认设备的改变而改变，有初始值，但是用户在使用过程中，有必要关注和更改。</span></div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <span class="comment">//prefer和nearest并不是default，所以还是需要用户设置。</span></div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="comment">//分开在输入、输出format里进行设置</span></div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;    <span class="comment">//QAudioFormat&amp; defaultAudioFormat();</span></div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;    <span class="keywordtype">void</span> startDefaultInput();</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;    <span class="keywordtype">void</span> startDefaultOutput();</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;signals:</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    <span class="comment">/*输入音频数据准备就绪，readAll即可读取。*/</span></div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    <span class="keywordtype">void</span> readyRead();</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;<span class="keyword">public</span> slots:</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;    QAudioFormat mInputAudioFormat;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;    QAudioFormat mOutputAudioFormat;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;    <span class="comment">/*保存输入、输出设备信息，采样率、声道、位宽*/</span></div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;    QAudioDeviceInfo mInputDeviceInfo;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    QAudioDeviceInfo mOutputDeviceInfo;</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;    <span class="comment">/*操作输入、输出设备的工具*/</span></div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;    QAudioInput* mInputManager;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;    QAudioOutput* mOutputManager;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;    <span class="comment">/*读写输入、输出设备的流控制器，QIODevice*/</span></div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;    QIODevice* mInputDevice;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    QIODevice* mOutputDevice;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;};</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;<span class="preprocessor">#endif // QQTAUDIOMANAGER_H</span></div><div class="ttc" id="class_q_qt_audio_manager_html"><div class="ttname"><a href="class_q_qt_audio_manager.html">QQtAudioManager</a></div><div class="ttdoc">The QQtAudioManager class 为用户提供连接声卡的通道，一个Manager包括：输入选择，输出选择，输入读信号，...</div><div class="ttdef"><b>Definition:</b> qqtaudiomanager.h:58</div></div>
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